<template>
  <div class="container">
    <h2>折线图堆叠</h2>
    <div class="chart-container">
      <div id="basicAreaChart" style="height:500px"></div>
    </div>
  </div>
</template>

<script>
export default {
  name: "stackedLineChart",
  data() {
    return {
      option: {
        title: {
          text: "Title: Stacked Line ",
        },
        // 提示框组件
        tooltip: {
          trigger: "axis",
        },
        // 图例组件
        legend: {
          data: ["Email", "Union Ads", "Video Ads", "Direct", "Search Engine"],
        },
        grid: {
          left: "3%",
          right: "4%",
          bottom: "3%",
          containLabel: true, // grid 区域是否包含坐标轴的刻度标签
        },
        // 工具栏
        toolbox: {
          feature: {
            // 保存为图片。
            saveAsImage: {},
            // 数据视图工具，可以展现当前图表所用的数据，编辑后可以动态更新。
            dataView: {
              show: true,
            },
            // 配置项还原
            restore: {
              show: true,
            },
            // 动态类型切换
            magicType: {
              type: ["line", "bar", "stack"],
            },
          },
        },
        xAxis: {
          type: "category",
          boundaryGap: false,
          data: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
        },
        yAxis: {
          type: "value",
        },
        series: [
          {
            name: "Email",
            type: "line",
            stack: "Total",
            data: [120, 132, 101, 134, 90, 230, 210],
          },
          {
            name: "Union Ads",
            type: "line",
            stack: "Total",
            data: [220, 182, 191, 234, 290, 330, 310],
          },
          {
            name: "Video Ads",
            type: "line",
            stack: "Total",
            data: [150, 232, 201, 154, 190, 330, 410],
          },
          {
            name: "Direct",
            type: "line",
            stack: "Total",
            data: [320, 332, 301, 334, 390, 330, 320],
          },
          {
            name: "Search Engine",
            type: "line",
            stack: "Total",
            data: [820, 932, 901, 934, 1290, 1330, 1320],
          },
        ],
      },
    };
  },
  mounted() {
    this.getLineChart();
  },
  methods: {
    // 设置折线图
    getLineChart() {
      this.lineChart = this.$echart.init(
        document.getElementById("basicAreaChart")
      );
      this.lineChart.setOption(this.option);
    },
  },
};
</script>

<style lang="less">
.chart-container {
  canvas {
    // width: 200px !important;
  }
}
</style>